Sour Grape by East Coast Seeds
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A sativa-leaning cross of Vortex × C4 IBL, Sour Grape — released by East Coast Seeds — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 52 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Sour Grape grows against.
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Similar strains
| Breeder | East Coast Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±52 days |
| Environment | Outdoors |
| Lineage | Vortex × C4 IBL |
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Growing Sour Grape: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Vortex or C4 IBL will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.
Sour Grape FAQ
How long does Sour Grape take to flower?
Sour Grape typically flowers in around 52 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Sour Grape an indica or a sativa?
Sour Grape is listed as mostly sativa.
What are the parents of Sour Grape?
Sour Grape was bred from Vortex × C4 IBL by East Coast Seeds.
What environment does Sour Grape like?
Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.
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